Detections
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RHEL 8 / 9 : Red Hat Ansible Automation Platform 2.5 Product Security and Bug Fix Update (Important) (RHSA-2026:6278)
critical Nessus Plugin ID 304542
Synopsis
The remote Red Hat host is missing one or more security updates.Description
The remote Redhat Enterprise Linux 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:6278 advisory.Red Hat Ansible Automation Platform provides an enterprise framework for building, deploying and managing IT automation at scale. IT Managers can provide top-down guidelines on how automation is applied to individual teams, while automation developers retain the freedom to write tasks that leverage existing knowledge without the overhead. Ansible Automation Platform makes it possible for users across an organization to share, vet, and manage automation content by means of a simple, powerful, and agentless language.
Security Fix(es):
* automation-gateway-proxy: Unexpected session resumption in crypto/tls (CVE-2025-68121)
* automation-gateway-proxy: Memory exhaustion in query parameter parsing in net/url (CVE-2025-61726)
* python3.12-pillow: Pillow: Out-of-bounds Write via Specially Crafted PSD Image (CVE-2026-25990)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
IMPORTANT: All users must download the latest version of the installer. Attempting to install or upgrade with a previous version of the installer could result in failure.
For details about this release, refer to the release notes listed in the References section.
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected automation-gateway-proxy, automation-gateway-proxy-server and / or python3.12-pillow packages.See Also
https://access.redhat.com/security/updates/classification/#important
http://www.nessus.org/u?de4ef659
http://www.nessus.org/u?8a5ccf41
https://bugzilla.redhat.com/show_bug.cgi?id=2434432
https://bugzilla.redhat.com/show_bug.cgi?id=2437111
https://bugzilla.redhat.com/show_bug.cgi?id=2439170
Plugin Details
Severity: Critical
ID: 304542
File Name: redhat-RHSA-2026-6278.nasl
Version: 1.1
Type: Local
Agent: unix
Family: Red Hat Local Security Checks
Published: 4/1/2026
Updated: 4/1/2026
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: High
Score: 8.1
Vendor
Vendor Severity: Important
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2025-68121
CVSS v3
Risk Factor: Critical
Base Score: 10
Temporal Score: 9
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
CVSS v4
Risk Factor: Critical
Base Score: 9.3
Threat Score: 8.9
Threat Vector: CVSS:4.0/E:P
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score Source: CVE-2026-25990
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:python3.12-pillow, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:automation-gateway-proxy-server, p-cpe:/a:redhat:enterprise_linux:automation-gateway-proxy, cpe:/o:redhat:enterprise_linux:8
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 3/31/2026
Vulnerability Publication Date: 1/22/2026